PC audio input and output

[sssmk]

Hi,

I face a problem in Labview when I generate the audio signal through the audio out port in the PC.

According to my application I have to generate the audio signal through audio out and feed it back to the PC audio input port after amplification using the external circuitry .

The problem I face here is whenever I generate the signal in the out port the same signal is read  through audio input port without any physical connection.

Can someone help me out.Pls find the attached VI image.

Thanks,

Sandeep

[Coq_Rouge]

Please post your VI not some large picture that take  ages to download.... Also check in your sound card setting that your input source is set to "what U hear" You must also aware of that it is no synchronization between the sound input and output. But I do think that matter for your setup. 

[sssmk]

Hi , Can you pls tell me how to check the sound card seetings.

[Coq_Rouge]

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@sssmk wrote:

Hi , Can you pls tell me how to check the sound card seetings.

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Sssmk! Please understand that we can not debug a picture. We need the actual Labview code. And for the sound card setting you will find this in the control panel.

[sssmk]

Hi ,

I am sorry..Here is the VI .

Thanks

[Coq_Rouge]

The VI you posted can not work. You can use my VI as start. It should work

[sssmk]

Hi,

Thanks for your response.

I have connected Audio out port to audio in port with audio cable but i can not see the out put signal at the audio in.